Utility Relapse

I have been focusing mostly on open lately with Wyatt which is going well. I always include scent discrimination, though, in our daily practice. I decided to just do utility stuff the other day and found that he was confused on the directed retrieve. I guess I should not wait so long between practicing it. I am going to go back to one glove. He seems to have gotten rusty on the mark command and will sometimes head to the wrong glove. He does know the "oops" command very well though. When I say "oops" he switches to the correct glove. I have been noticing that he stresses when corrected though even though I am not harsh at all. I also see this on contact where he will stay high on the contact sometimes after being corrected.